Modded Sent from mobile, might be terse
> On Aug 5, 2015, at 5:25 PM, Mr. Glen J. Loftin > <[email protected]> wrote: > > What do you all know about x-ass > > Sent from my iPhone > > On Aug 3, 2015, at 10:26 AM, Mickaël Rémond <[email protected]> wrote: > >> Hello Holger, >> >> Holger Baust said: >> >> Hi! >> >> I am planning to upgrade jabber.freenet.de soon. >> But this is a multinode setup with 2 nodes. >> >> Has anyone done this yet and can give me some advises? >> (only ejabberd specific please) >> >> Since these Nodes run as Virtual Machines on VMWare clusters, >> I have the advantage of using snapshot for roll-backs. >> >> It should be quite a straightforward operation. >> >> My advice are the following: >> >> Backup Mnesia DB and relational backend. >> Take a snapshot of your VM for rollbacks. >> Assess if you can migrate one node at a time. If you can simulate cluster >> update on snapshot outside of the production context it would be good. >> Depending on which version you are and which version you are getting two, it >> may be possible to mix cluster nodes from two versions (if internal data >> structure between the two versions did not change) >> Shutdown nodes (or only one if possible) and upgrade code, but keep data and >> restart the nodes in reverse order (otherwise, the service will wait for the >> latest online master to go up to really start). >> Does it make sense ? Do you have more specific questions ? >> >> -- >> Mickaël Rémond >> http://www.process-one.net
